Home / 19,118,703.79-28,650,237-11,816,573.23

Finding the Fourth Proportional to 19,118,703.79, 28,650,237 and 11,816,573.23

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Solution

The fourth proportional to 19,118,703.79, 28,650,237 and 11,816,573.23 is: 17,707,666.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,703.79 : 28,650,237 = 11,816,573.23 : x
  2. Step 2: Convert to fraction form
    19,118,703.79/28,650,237 = 11,816,573.23/x
  3. Step 3: Cross multiply
    19,118,703.79x = 28,650,237 × 11,816,573.23
  4. Step 4: Simplify right side
    19,118,703.79x = 338,547,623,567,355.50
  5. Step 5: Solve for x
    x = 338,547,623,567,355.50/19,118,703.79
  6. Step 6: Final answer
    x = 17,707,666.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.